Vol. 2, issue 05, article # 1

pdf Abdullin P. M., Birulin V. P., Popov A. I., Sadchikhin A. V. Laser sensing of higher hydrocarbons against the methane background. // Atmospheric and oceanic optics. 1989. V. 2. No. 05. P. 369-372.
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Abstract:

A new express method for determining the total level of higherhydrocarbons against a background of high methane levels is reported. It is based on the sharp qualitative difference of the dependence of the absorption coefficients of methane and the higherhydrocarbons on the pressure of demonstrate the possibility of against a background which exceeds the gaseous medium examined. We demonstrate the possibility of detecting a propane concentration against a background which exceeds it by one hundred times.

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